.ac-container {
    text-align: left;
}

.ac-container label {

    padding: 0 20px;
    position: relative;
    z-index: 20;
    display: block;
    height: 35px;
    line-height: 35px;
    cursor: pointer;
    font-size: 16px;
    background: #e0e0e0;
    box-shadow: 0px 0px 0px 1px rgba(155, 155, 155, 0.3), 1px 0px 0px 0px rgba(255, 255, 255, 0.9) inset, 0px 2px 2px rgba(0, 0, 0, 0.1);
}

.ac-container label:hover {
    background: #fff;
}

.ac-container input:checked + label,
.ac-container input:checked + label:hover {
    background: #ff7878;
    color: #FFFFFF;
    box-shadow: 0px 0px 0px 1px rgba(155, 155, 155, 0.3), 0px 2px 2px rgba(0, 0, 0, 0.1);
}

.ac-container label:hover:after,
.ac-container input:checked + label:hover:after {
    content: '';
    position: absolute;
    width: 24px;
    height: 24px;
    right: 13px;
    top: 7px;
    background: transparent url(../../images/arrow_down.png) no-repeat center center;
}

.ac-container input:checked + label:hover:after {
    background-image: url(../../images/arrow_up.png);
}

.ac-container input {
    display: none;
}

.ac-container article {
    background: rgba(255, 255, 255, 0.5);
    margin-top: -1px;
    overflow: hidden;
    height: 0px;
    position: relative;
    z-index: 10;
    -webkit-transition: height 0.3s ease-in-out, box-shadow 0.6s linear;
    -moz-transition: height 0.3s ease-in-out, box-shadow 0.6s linear;
    -o-transition: height 0.3s ease-in-out, box-shadow 0.6s linear;
    -ms-transition: height 0.3s ease-in-out, box-shadow 0.6s linear;
    transition: height 0.3s ease-in-out, box-shadow 0.6s linear;
}

.ac-container article p {
    color: #777;
    line-height: 23px;
    font-size: 14px;
    padding: 20px;
    text-shadow: 1px 1px 1px rgba(255, 255, 255, 0.8);
}

.ac-container input:checked ~ article {
    -webkit-transition: height 0.5s ease-in-out, box-shadow 0.1s linear;
    -moz-transition: height 0.5s ease-in-out, box-shadow 0.1s linear;
    -o-transition: height 0.5s ease-in-out, box-shadow 0.1s linear;
    -ms-transition: height 0.5s ease-in-out, box-shadow 0.1s linear;
    transition: height 0.5s ease-in-out, box-shadow 0.1s linear;
    box-shadow: 0px 0px 0px 1px rgba(155, 155, 155, 0.3);
}

.ac-container input:checked ~ article.ac-small {
    height: 140px;
}

.ac-container input:checked ~ article.ac-medium {
    height: 180px;
}

.ac-container input:checked ~ article.ac-large {
    height: 230px;
}